Relative errors

The Angular Variation Model gives smaller relative errors than the othertwo approximations. That is seen when figure 4 below is compared to figures 5 and 6.

Figure 4 Relative errors in absorbed power versus angle of incidence for all 62 studied panes for the Angular Variation Model.

Figure 5 Relative errors in absorbed power versus angle of incidence for all 62 studied panes for the Clear Pane Model.

Figure 6 Relative errors in absorbed power versus angle of incidence for all 62 studied panes for the Constant Value Model.